计时炸弹 jìshízhàdàn time bomb Origin Definitions Defs Strokes Stroke Words Sentences Sents 计时 計時 jìshí verb + noun to time to measure or calculate time; to show time炸弹 炸彈 zhàdàn noun bomb a type of explosive weapon usually made of a metal shell filled with explosives, triggered by a fuse and dropped from aircraft or thrown